2002 ford explorer.replaced 4wd transfer case module with used one & still buttons don't lite when pressed and dash don't lite as well?

2002 ford explorer.replaced 4wd transfer case module with used one & still buttons don't lite when pressed and dash don't lite as well?

Read more: https://fordnews.org/explorer/2002-ford-explorer-replaced-4wd-transfer-case-module.html